G.R. No. 234207, June 10, 2019
PEOPLE OF THE PHILIPPINES, Plaintiff-Appellee, vs. MARLON CRISTOBAL Y AMBROSIO, Accused-Appellant

FACTS

On November 21, 2013, police officers, including PO2 Rexy Ramos, were conducting “Oplan Sita” at a checkpoint in Pasig City. They flagged down accused-appellant Marlon Cristobal, who was driving a motorcycle without a helmet. When Cristobal failed to present the motorcycle’s Certificate of Registration (CR) and Official Receipt (OR), PO2 Ramos asked for his driver’s license and proceeded to prepare a traffic citation ticket. At this point, Cristobal attempted to flee but was apprehended by other officers. He was brought back to the checkpoint where PO2 Ramos conducted a search for deadly weapons. Finding none, but noticing a bulging pocket, PO2 Ramos ordered Cristobal to remove the object. Cristobal pulled out a small plastic bag containing seven heat-sealed plastic sachets of white crystalline substance suspected to be shabu. He was immediately arrested and informed of his constitutional rights. The seized items were marked in his presence. The team then brought Cristobal to their office, where an inventory was conducted in the presence of a barangay kagawad. The items were later turned over to an investigator, submitted to the crime laboratory for examination, and tested positive for methamphetamine hydrochloride.
The defense presented a starkly different version. Cristobal testified that after being flagged down for a traffic violation, he was asked to empty his pockets, revealing P18,000.00 sent by his mother. PO2 Ramos momentarily left, returned, said “positive,” and frisked him, finding nothing. Despite his offer to prove ownership of the motorcycle by going to his house, he was forcibly taken to the police precinct where he was shown the shabu and falsely accused.

ISSUE

Whether the warrantless search and seizure conducted on accused-appellant Marlon Cristobal was valid, thereby rendering the confiscated drugs admissible as evidence against him.

RULING

The Supreme Court GRANTED the appeal, REVERSED and SET ASIDE the Decision of the Court of Appeals, and ACQUITTED Marlon Cristobal.
The Court held that the warrantless search conducted on Cristobal was invalid. The prosecution failed to prove that the search fell under any recognized exception to the warrant requirement. The search could not be justified as incidental to a lawful arrest because, at the time of the search, Cristobal was not under arrest. He was initially detained for a traffic violation (riding without a helmet and failure to present CR/OR), which are punishable only by a fine and do not justify custodial arrest under prevailing laws and jurisprudence. The act of fleeing did not, by itself, provide probable cause for an arrest for a more serious crime like drug possession. The police had no reasonable ground to believe he had committed a crime at the moment they ordered him to empty his pockets. The search was therefore exploratory and violative of his constitutional right against unreasonable searches and seizures.
Consequently, the evidence obtained—the seven plastic sachets of shabu—was inadmissible under the “fruit of the poisonous tree” doctrine. With the drugs rendered inadmissible, the corpus delicti of the crime of illegal possession was not established. His guilt was not proven beyond reasonable doubt, necessitating his acquittal.

DOCTRINES

1. The Warrant Requirement and Its Exceptions: A search and seizure must be carried out with a judicially issued warrant, unless it falls under established exceptions such as: (a) search incidental to a lawful arrest; (b) search of moving vehicles; (c) seizure of evidence in plain view; (d) consent searches; (e) customs searches; (f) stop and frisk; and (g) exigent and emergency circumstances. The prosecution bears the burden of proving the applicability of an exception.
2. Search Incidental to a Lawful Arrest: For this exception to apply, a lawful arrest must precede the search. The process cannot be reversed. The legality of the arrest is a prerequisite, and the search must be contemporaneous and limited to the person of the arrestee and the area within his immediate control to discover weapons or evidence.
3. Fruit of the Poisonous Tree Doctrine: Evidence obtained from an unconstitutional or illegal search and seizure is inadmissible for any purpose in any proceeding. This is mandated by Section 3(2), Article III of the 1987 Constitution. Such evidence is considered tainted and cannot be used to establish the guilt of the accused.
4. Corpus Delicti in Drug Cases: In prosecutions for illegal possession of dangerous drugs, the identity and integrity of the corpus delicti (the illicit drug itself) must be established with moral certainty. The chain of custody rule is designed to ensure this. If the very seizure of the evidence is illegal and the evidence is excluded, the corpus delicti is not proven, leading to acquittal.